Is it a bird? A plane? No, now at Hartsfield-Jackson International Airport — it’s sheep.

The world’s busiest airport plans to use sheep to control nearby vegetation, in a partnership with Trees Atlanta.

The pilot program will involve 100 grazing sheep near the Atlanta airport. Officials with the airport and Trees Atlanta plan to discuss the program at a news conference off Riverdale Road today.

The arrival of the animals at the airport comes after Trees Atlanta hired sheep over the summer to munch on kudzu in other areas, including Chastain Park. Sheep are a relatively environmentally-friendly method of invasive plant control, according to Trees Atlanta.